Ask a ScientistScience Journal for Kids
Sit-ups don’t really help with weight loss and also put undue stress on the spine, often leading to pain and injury. Learn more about your ad choices. Visit megaphone.fm/adchoices
Sit-ups don’t really help with weight loss and also put undue stress on the spine, often leading to pain and injury. Learn more about your ad choices. Visit megaphone.fm/adchoices
Nyd den ubegrænsede adgang til tusindvis af spændende e- og lydbøger - helt gratis
Dansk
Danmark